How it Works

The purpose of shock absorbing insoles is to cushion the body column from the impact of heel strike. The energy force caused by heel strike is absorbed by the insole material. As the heel lifts off, the insole material rebounds, releasing the stored energy before it can travel through the body column. The illustration shows that not all insole materials are the same in structure or performance.
Heel Strike On Common Foam Insole Compare Heel Strike On Viscolas Insole
without viscolas
Heel strike completely compresses the foam insole. Permanent compression and loss of rebound capability begins to take place in the first few days of wear. They completely compress, or bottom out, in just a few weeks. Perspiration, heat and friction cause the foam insoles to break down and crumble, further diminishing their effectiveness. Heel strike is displaced laterally, spreading the energy force evenly over the insole surface providing maximum energy dissipation and storage capabilities. By nature of their material, Viscolas insoles resist permanent compression and retain their total effectiveness for up to 12 months. Viscolas is not affected by perspiration, heat, or friction (sole sheer).